DocumentCode :
895855
Title :
Measurement of X-Ray Induced Electron Emission
Author :
Aeby, Charles A. ; Whan, Glenn A.
Author_Institution :
Air Force Weapons Laboratory Kirtland AFB, NM 87117
Volume :
28
Issue :
6
fYear :
1981
Firstpage :
4177
Lastpage :
4181
Abstract :
The development and use of a magnetic spectrograph for the measurement of X-ray induced electron emission is described. Results are presented for metal and dielectric targets ranging in atomic number from Z=82 to Z=6. Materials studied were lead, tantalum, copper, aluminum, magnesium, solar cell cover glass, silica cloth, thermal control paint (A surface coating with specific thermal absorption and emissivity properties), Kevlar, Mylar and conducting and non-conducting epoxy. Direct measurement was made of the quantum yield and energy distribution of electrons emitted at angles of 0°, 30°, 45° and 60° with respect to the surface normal of targets exposed to normal incidence unfiltered and filtered (0.12 cm Al) 50kV bremsstrahlung x rays. The range of electron energies analyzed was 0.1 keV to ¿ 50 keV. Experimental results are compared with previous measurements and with QUICKE 2M3 predictions where predictive capability matches the measurement range.
Keywords :
Aluminum; Atomic measurements; Conducting materials; Copper; Dielectric materials; Dielectric measurements; Electron emission; Magnesium; Magnetic materials; Thermal conductivity;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.1981.4335697
Filename :
4335697
Link To Document :
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